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设置zookeeper开机自启动
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原文連接：http://blog.csdn.net/u012453843/article/details/70162796
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?兩種方式可以實現開機自啟動
第一種：直接修改/etc/rc.d/rc.local文件
在/etc/rc.d/rc.local文件中需要輸入兩行，
其中
export JAVA_HOME=/usr/java/jdk1.8.0_112
export PATH=$JAVA_HOME/bin:$PATH ?
是必須要有的，否則開機啟動不成功（博主就坑在這里，花了好幾個小時）
大家根據自己JDK安裝的位置自行更改。另一行/usr/local/zookeeper-3.4.5/bin/zkServer.sh start則是我們zookeeper的啟動命令。配置好之后，重啟虛擬機，會發現已經可以開機自啟了。
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?copy[root@zookeeper?~]#?vim?/etc/rc.d/rc.local?????#!/bin/sh??#??#?This?script?will?be?executed?*after*?all?the?other?init?scripts.??#?You?can?put?your?own?initialization?stuff?in?here?if?you?don't??#?want?to?do?the?full?Sys?V?style?init?stuff.????touch?/var/lock/subsys/local??export?JAVA_HOME=/usr/java/jdk1.8.0_112??/usr/local/zookeeper-3.4.5/bin/zkServer.sh?start??
第二種：把zookeeper做成服務
1、進入到/etc/rc.d/init.d目錄下，新建一個zookeeper腳本
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?copy[root@zookeeper?~]#?cd?/etc/rc.d/init.d/??[root@zookeeper?init.d]#?pwd??/etc/rc.d/init.d??[root@zookeeper?init.d]#?touch?zookeeper??
2、給腳本添加執行權限
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?copy[root@zookeeper?init.d]#?chmod?+x?zookeeper??
3、使用命令vim zookeeper進行編輯，在腳本中輸入如下內容，其中同上面注意事項一樣要添加export JAVA_HOME=//usr/java/jdk1.8.0_112這一行，否則無法正常啟動。
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?copy[root@zookeeper?init.d]#?vim?zookeeper?????#!/bin/bash??#chkconfig:2345?20?90??#description:zookeeper??#processname:zookeeper??export?JAVA_HOME=//usr/java/jdk1.8.0_112??case?$1?in??????????start)?su?root?/usr/local/zookeeper-3.4.5/bin/zkServer.sh?start;;??????????stop)?su?root?/usr/local/zookeeper-3.4.5/bin/zkServer.sh?stop;;??????????status)?su?root?/usr/local/zookeeper-3.4.5/bin/zkServer.sh?status;;??????????restart)?su?/usr/local/zookeeper-3.4.5/bin/zkServer.sh?restart;;??????????*)?echo?"require?start|stop|status|restart"?;;??esac??
4、使用service zookeeper start/stop命令來嘗試啟動關閉zookeeper，使用service zookeeper status查看zookeeper狀態。
先來看啟動及狀態
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?copy[root@zookeeper?init.d]#?service?zookeeper?start??JMX?enabled?by?default??Using?config:?/usr/local/zookeeper-3.4.5/bin/../conf/zoo.cfg??Starting?zookeeper?...?STARTED??[root@zookeeper?init.d]#?service?zookeeper?status??JMX?enabled?by?default??Using?config:?/usr/local/zookeeper-3.4.5/bin/../conf/zoo.cfg??Mode:?standalone??[root@zookeeper?init.d]#???
接著看關閉及狀態
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?copy[root@zookeeper?init.d]#?service?zookeeper?stop??JMX?enabled?by?default??Using?config:?/usr/local/zookeeper-3.4.5/bin/../conf/zoo.cfg??Stopping?zookeeper?...?STOPPED??[root@zookeeper?init.d]#?service?zookeeper?status??JMX?enabled?by?default??Using?config:?/usr/local/zookeeper-3.4.5/bin/../conf/zoo.cfg??Error?contacting?service.?It?is?probably?not?running.??[root@zookeeper?init.d]#??
5、添加到開機自啟
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?copy[root@zookeeper?init.d]#?chkconfig?--add?zookeeper???
? ? ? 添加完之后，我們使用chkconfig --list來查看開機自啟的服務中是否已經有我們的zookeeper了，如下所示，可以看到在最后一行便是我們的zookeeper服務了。
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?copy[root@zookeeper?init.d]#?chkconfig?--list??auditd??????????0:關閉????1:關閉????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??blk-availability????0:關閉????1:啟用????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??crond???????????0:關閉????1:關閉????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??ip6tables???????0:關閉????1:關閉????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??iptables????????0:關閉????1:關閉????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??iscsi???????????0:關閉????1:關閉????2:關閉????3:啟用????4:啟用????5:啟用????6:關閉??iscsid??????????0:關閉????1:關閉????2:關閉????3:啟用????4:啟用????5:啟用????6:關閉??lvm2-monitor????0:關閉????1:啟用????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??mdmonitor???????0:關閉????1:關閉????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??multipathd??????0:關閉????1:關閉????2:關閉????3:關閉????4:關閉????5:關閉????6:關閉??netconsole??????0:關閉????1:關閉????2:關閉????3:關閉????4:關閉????5:關閉????6:關閉??netfs???????????0:關閉????1:關閉????2:關閉????3:啟用????4:啟用????5:啟用????6:關閉??network?????????0:關閉????1:關閉????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??postfix?????????0:關閉????1:關閉????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??rdisc???????????0:關閉????1:關閉????2:關閉????3:關閉????4:關閉????5:關閉????6:關閉??restorecond?????0:關閉????1:關閉????2:關閉????3:關閉????4:關閉????5:關閉????6:關閉??rsyslog?????????0:關閉????1:關閉????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??saslauthd???????0:關閉????1:關閉????2:關閉????3:關閉????4:關閉????5:關閉????6:關閉??sshd????????????0:關閉????1:關閉????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??udev-post???????0:關閉????1:啟用????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??zookeeper???????0:關閉????1:關閉????2:啟用????3:啟用????4:啟用????5:啟用????6:關閉??
? ? ? ?開機自啟配置好了，我們重啟一下試試，如下所示。一切正常！！說明我們的開機自啟動成功了。
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?copy[root@zookeeper?~]#?/usr/local/zookeeper-3.4.5/bin/zkServer.sh?status??JMX?enabled?by?default??Using?config:?/usr/local/zookeeper-3.4.5/bin/../conf/zoo.cfg??Mode:?standalone??
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